Pulse arrival time is not an adequate surrogate for pulse transit time in terms of tracking diastolic pressure

Author

Zhang, Guanqun ; Xu, Da ; Olivier, N. Bari ; Mukkamala, Ramakrishna

Author_Institution

Dept. of Electr. & Comput. Eng., Michigan State Univ., East Lansing, MI, USA

fYear

2011

fDate

Aug. 30 2011-Sept. 3 2011

Firstpage

6462

Lastpage

6464

Abstract

We compared pulse arrival time (PAT) and pulse transit time (PTT) in terms of their ability to track diastolic pressure (DP). We performed the comparison using high fidelity, invasive arterial waveforms recorded from six dogs during multiple interventions. On average, DP ranged from 40 to 106 mmHg and therefore varied widely. PAT and PTT were able to predict DP with average root-mean-squared-errors of 9.8±5.8 mmHg and 5.7±2.0 mmHg (p = 0.02). Thus, even though PAT is simpler to measure, we can only recommend using PTT for tracking DP.

Keywords

blood pressure measurement; blood vessels; electrocardiography; ECG; diastolic pressure; invasive arterial waveform; pulse arrival time; pulse transit time; Biomedical monitoring; Blood pressure; Delay effects; Dogs; Educational institutions; Electrocardiography; Monitoring; Algorithms; Animals; Blood Pressure; Blood Pressure Determination; Cardiovascular Diseases; Cardiovascular Physiological Phenomena; Diastole; Dogs; Electrodes; Femoral Artery; Heart Rate; Humans; Models, Cardiovascular; Models, Statistical; Monitoring, Physiologic; Pressure; Pulse; Time Factors;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, EMBC, 2011 Annual International Conference of the IEEE

Conference_Location

Boston, MA

ISSN

1557-170X

Print_ISBN

978-1-4244-4121-1

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2011.6091595

Filename

6091595